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NINGBO MIAOYU MACHINERY TECHNOLOGY CO., LTDNINGBO MIAOYU MACHINERY TECHNOLOGY CO., LTD

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PTFE Wedge Single Acting Mechanical Seal for Kewpump

PTFE Wedge Single Acting Mechanical Seal for Kewpump
thumb PTFE Wedge Single Acting Mechanical Seal for Kewpump

PTFE Wedge Single Acting Mechanical Seal for Kewpump

• Flush Port Alignment: The gland design ensures the flush ports line up perfectly with the Kewpump housing for effective face cooling.

• Heavy-Duty Spring: Uses a thick-wire coil spring to power through viscous fluids and prevent clogging.

Model:109
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Key Features

• Direct Kewpump Replacement: Engineered to fit Kewpump KS, KA, and KCM series pumps without housing modification.

• Chemical Duty: The PTFE wedge ensures compatibility with the aggressive acids and alkalis often pumped by Kewpumps in the palm oil and oleochemical industries.

• Easy Maintenance: The simple, single-spring design is easy to clean and refurbish.



Technical Specs

Materials

Mediums

Petroleum, chemical solvents, medium corrosion.

Stationary Ring

Ceramic/Sic/TC

Temperature

30℃ to 200℃

Rotary Ring

Carbon/Sic/TC

Pressure

≤1.7MPa

Secondary Seal

PTFE

Speed

≤25m/s

Spring and Metal Part

Stainless Steel


CF109-1.jpg
CF109-2.jpg



Product Specifications

Inch Shaft D1Size CodeD3D7L1L4
0.500012726.725.4020.68.0
0.625015830.731.7519.010.3
0.750019134.034.9322.210.3
0.875022237.238.1023.810.3
1.000025440.341.2825.411.1
1.125028543.544.4527.011.1
1.250031748.347.6327.011.0
1.375034951.550.8028.611.1
1.500038154.653.9828.611.1
1.625041261.060.3335.012.7
1.750044464.263.5035.012.7
1.875047667.366.6835.012.7
2.000050870.569.8535.012.7
2.125053976.976.2043.014.3
2.250057180.079.3843.014.3
2.375060383.282.5543.014.3
2.500063586.485.7343.014.6
2.625066689.685.7343.015.9
2.750069892.788.9043.015.9
2.875073095.985.2543.015.9
3.000076297.598.4343.015.9
3.1250793100.7101.6043.019.8
3.2500825105.4104.7843.019.8
3.3750857108.6107.9543.019.8
3.5000889111.8111.1343.019.8
3.6250920115.0114.3043.019.8
3.7500952118.1117.4843.019.8
3.8750984121.3120.6543.019.8
4.0001016124.5123.8343.019.8
4.1251047127.7130.1843.019.8
4.2501079130.8133.3543.019.8
4.3751111134.0136.5343.019.8
4.5001143137.2139.7043.019.8
4.6251175149.9142.8851.019.8
4.7501206153.1146.0551.019.8
4.8751238156.2149.2351.019.8
5.0001270159.4152.4051.019.8



Workshop

This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.


Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606



Product Research, Development and Testing

Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.


R&D and Design.jpg
microscope.jpg
Light band detection.jpg
pressure test.jpg



Industry Solutions

Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606




Case Study

Oleochemical Plant: A palm oil refinery using Kewpumps faced seal failures due to acidic condensate. We replaced the OEM seals with our PTFE Wedge Single Acting Seal. The PTFE wedge resisted the acid attack, doubling the maintenance interval.

Testimonials

Perfect fit for our KS series pumps. We save 30% compared to buying from the pump manufacturer and the quality is identical.

—Mill Engineer, Malaysia



FAQs about Metal Bellows Seals for High Temperature Pumps

Q: Which Kewpump models does this fit?

A: It fits most standard chemical process pumps from Kewpump, including the KS (ISO 2858) and KCM series. Please confirm the shaft size.

Please Contact Us!
Get Started With Your Next Project.
If you have any questions about our products and services, please feel free to contact us. Our team will get in touch with you within 24 hours!
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    Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.

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